PCA (Power Cost Adjustment)
The power cost adjustment (PCA) is paid directly to your co-op’s wholesale power supplier for generating expenses that exceed the baseline rate. Because unstable fuel prices make it extremely difficult for power suppliers to predict generating costs, the PCA was established to accurately reflect the difference in projected costs and actual generating costs. The PCA appears as a separate charge or credit on your electric bill.
The method of calculating the PCA has been the same since the early 1970s.